Fig 3. Increases in cfDNA at rest, due to previous training sessions mostly involve increases in polynucleosomal DNA.

Linear correlations of total nucleosomal cfDNA (cfDNA ≥ 90bp) with polynucleosomal cfDNA (cfDNA ≥ 222bp) following a single training session at study day one (A) and at study day two (B). While a highly significant correlation was found at study day two (r = 0.95; p < 0.0001), no significant correlations were found at study day one (as shown in A).